Might need a new SFX PSU

no_1_dave

no_1_dave

no_1_dave

Soldato
Joined
7 Jul 2004
Posts
7,876
Location
Gloucester
Currently using a Corsair SF750 and it's been excellent.
It's handled a 3080 for the last couple of years including whilst mining ETH at the same time as my CPU has been sat at 100% encoding x265

However, I'm tempted to get one of the new 4xxx series cards (possibly the 4090) and I'm starting to think my trusty 750w PSU won't be enough.

I could carry on as I am and just rig my spare Corsair RM650x up to power the 3x8pin (to 1x12pin) PCI-e cables, a bit like you do when using 2 PSUs in a mining rig. But that doesn't sit right with me so are there any recommended 1000w SFX PSUs available? And if so, are they decent quality like my current 750w one is?
 
They are recommending that with a 4090 you get a 3.0 power supply to minimise the risk of damage to the wiring, so I guess we will have to wait and see what becomes available. It's very likely that the manufacturers will specifically aim the first supplies at the 4090.
 
SpellowHouse said:
They are recommending that with a 4090 you get a 3.0 power supply to minimise the risk of damage to the wiring, so I guess we will have to wait and see what becomes available. It's very likely that the manufacturers will specifically aim the first supplies at the 4090.
Click to expand...
Yea, with a massive premium because 4090 owners will all be wanting one
 
New SFX units are coming but there isn’t really anything yet. Lian Li have their 850 Gold unit which has a Gen 5 adaptor but I don’t believe it’s an ATX 3 PSU. Coolermaster and Thermaltake have both announced ATX 3 SFX PSU’s, one from CM was 1300w. I’m assuming at some point we will see an ATX 3 unit from Corsair but I don’t think they’ve said anything about it yet…
 
no_1_dave said:
Gaming, but CPUs don't get maxed out while gaming at high resolutions
Click to expand...

The reason I asked was because I'd care way less about having the recommended PSU if the graphics card was going to be fixed at a clock/power target for mining, which is usually far lower than the TDP and more stable than gaming.
 
Last edited:
rare said:
New SFX units are coming but there isn’t really anything yet. Lian Li have their 850 Gold unit which has a Gen 5 adaptor but I don’t believe it’s an ATX 3 PSU. Coolermaster and Thermaltake have both announced ATX 3 SFX PSU’s, one from CM was 1300w. I’m assuming at some point we will see an ATX 3 unit from Corsair but I don’t think they’ve said anything about it yet…
Click to expand...
Yea, seems everything is coming next year which is too late when all the new CPUs and GPUs are coming this year.
Might just have to go back to a standard sized case
 
no_1_dave said:
Currently using a Corsair SF750 and it's been excellent.
It's handled a 3080 for the last couple of years including whilst mining ETH at the same time as my CPU has been sat at 100% encoding x265

However, I'm tempted to get one of the new 4xxx series cards (possibly the 4090) and I'm starting to think my trusty 750w PSU won't be enough.

I could carry on as I am and just rig my spare Corsair RM650x up to power the 3x8pin (to 1x12pin) PCI-e cables, a bit like you do when using 2 PSUs in a mining rig. But that doesn't sit right with me so are there any recommended 1000w SFX PSUs available? And if so, are they decent quality like my current 750w one is?
Click to expand...
Wait for reviews. Always wait for reviews.

You could spend £300 right now on a quality psu and it might be a waste.
 
You must log in or register to reply here.
Back
Top Bottom